In American colleges and universities, the Freshman year is the first year of study. The equivalent of this in Nigerian universities is 'Year 1' or '100 Level.' Many schools refer to these first year students as Jambites, for the obvious reason, i.e. they had to pass JAMB (the university entrance examination) to gain admission into the university.
During my freshman year, I had to take an introductory course, which explained what American college life was all about. It was called 'US 101' (University Studies 101). It was in this class that I first heard the term 'Freshman 30.'
Now, if you already know what the Freshman 30 is, please bear with me as I attempt to explain it to those who might not be familiar with the term. (Chei! See grammar!)